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Contractions after 20 weeks but before 37 weeks
Results in dilation and effacement of cervical os
#1 cause of neonatal morbidity and mortality
Choose an answer
What is Naegele's Rule for estimating
1 2 First Trimester weeks
due date?
Pregnancy-associated Plasma Protein
3 Preterm labor 4
A (PAPP-A)
Don't know?
Terms in this set (69)
What is Naegele's Rule for estimating 9 months +7 days from first day of LMP
due date?
, Tests to confirm pregnancy and Beta-HCG (urine first)
expected trends
Serum Beta-HCG for high risk
Expect B-HCG to double every 29-53 hours for first
30 days after pregnancy
Gestational Dating (crown-rump 1st Crown-Rump length measurements via ultrasound
length)
More accurate than gestational age
If measured between 8-12 weeks gestation, CRL can
accurately predict delivery date within 7 days
* Full bladder helps ultrasound*
Genetic Testing Considerations Need informed consent prior to any testing
Carrier screening can be considered for potential
carriers of recessive disorders
Prenatal genetic testing: Screen fetus for aneuploidy,
neural tube deficits
Pregnancy-associated Plasma Protein Protein produced by the trophoblasts; abnormal
A (PAPP-A) levels of PAPP-A may be associated with an
increased risk of chromosomal abnormalities
Early lab for prenatal risk assessment, taken from
maternal blood in 1st trimester, detects 90% of most
important chromosomal abnormalities
Nuchal Translucency (NT) screening Ultrasound measurement for fetal abnormalities
detection.
Tests Trisomy 21, 13, 18